public function execute()
 {
     $ksStr = $this->getP("ks");
     if ($ksStr) {
         kSessionUtils::killKSession($ksStr);
         KalturaLog::debug("Killing session with ks - [{$ksStr}], decoded - [" . base64_decode($ksStr) . "]");
     } else {
         KalturaLog::err('logoutAction called with no KS');
     }
     setcookie('pid', "", 0, "/");
     setcookie('subpid', "", 0, "/");
     setcookie('uid', "", 0, "/");
     setcookie('kmcks', "", 0, "/");
     setcookie('screen_name', "", 0, "/");
     setcookie('email', "", 0, "/");
     return sfView::NONE;
     //redirection to kmc/kmc is done from java script
 }